1 files changed, 7 insertions, 14 deletions

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 02c839f40e2..d1986b7dcec 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -217,11 +217,6 @@ void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
 }
 EXPORT_SYMBOL_GPL(kvm_mmu_set_mask_ptes);
 
-static bool is_write_protection(struct kvm_vcpu *vcpu)
-{
-        return kvm_read_cr0_bits(vcpu, X86_CR0_WP);
-}
-
 static int is_cpuid_PSE36(void)
 {
         return 1;
@@ -243,11 +238,6 @@ static int is_large_pte(u64 pte)
         return pte & PT_PAGE_SIZE_MASK;
 }
 
-static int is_writable_pte(unsigned long pte)
-{
-        return pte & PT_WRITABLE_MASK;
-}
-
 static int is_dirty_gpte(unsigned long pte)
 {
         return pte & PT_DIRTY_MASK;
@@ -2247,15 +2237,17 @@ static void kvm_send_hwpoison_signal(unsigned long address, struct task_struct *
         send_sig_info(SIGBUS, &info, tsk);
 }
 
-static int kvm_handle_bad_page(struct kvm *kvm, gfn_t gfn, pfn_t pfn)
+static int kvm_handle_bad_page(struct kvm_vcpu *vcpu, gva_t gva,
+                               unsigned access, gfn_t gfn, pfn_t pfn)
 {
         kvm_release_pfn_clean(pfn);
         if (is_hwpoison_pfn(pfn)) {
-                kvm_send_hwpoison_signal(gfn_to_hva(kvm, gfn), current);
+                kvm_send_hwpoison_signal(gfn_to_hva(vcpu->kvm, gfn), current);
                 return 0;
         } else if (is_fault_pfn(pfn))
                 return -EFAULT;
 
+        vcpu_cache_mmio_info(vcpu, gva, gfn, access);
         return 1;
 }
 
@@ -2337,7 +2329,7 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn,
 
         /* mmio */
         if (is_error_pfn(pfn))
-                return kvm_handle_bad_page(vcpu->kvm, gfn, pfn);
+                return kvm_handle_bad_page(vcpu, v, ACC_ALL, gfn, pfn);
 
         spin_lock(&vcpu->kvm->mmu_lock);
         if (mmu_notifier_retry(vcpu, mmu_seq))
@@ -2564,6 +2556,7 @@ static void mmu_sync_roots(struct kvm_vcpu *vcpu)
         if (!VALID_PAGE(vcpu->arch.mmu.root_hpa))
                 return;
 
+        vcpu_clear_mmio_info(vcpu, ~0ul);
         trace_kvm_mmu_audit(vcpu, AUDIT_PRE_SYNC);
         if (vcpu->arch.mmu.root_level == PT64_ROOT_LEVEL) {
                 hpa_t root = vcpu->arch.mmu.root_hpa;
@@ -2710,7 +2703,7 @@ static int tdp_page_fault(struct kvm_vcpu *vcpu, gva_t gpa, u32 error_code,
 
         /* mmio */
         if (is_error_pfn(pfn))
-                return kvm_handle_bad_page(vcpu->kvm, gfn, pfn);
+                return kvm_handle_bad_page(vcpu, 0, 0, gfn, pfn);
         spin_lock(&vcpu->kvm->mmu_lock);
         if (mmu_notifier_retry(vcpu, mmu_seq))
                 goto out_unlock;